1 aba9c984 2019-09-08 stsp /*
  2 aba9c984 2019-09-08 stsp  * Copyright (c) 2019 Stefan Sperling <stsp@openbsd.org>
  3 aba9c984 2019-09-08 stsp  *
  4 aba9c984 2019-09-08 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 aba9c984 2019-09-08 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 aba9c984 2019-09-08 stsp  * copyright notice and this permission notice appear in all copies.
  7 aba9c984 2019-09-08 stsp  *
  8 aba9c984 2019-09-08 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 aba9c984 2019-09-08 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 aba9c984 2019-09-08 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 aba9c984 2019-09-08 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 aba9c984 2019-09-08 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 aba9c984 2019-09-08 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 aba9c984 2019-09-08 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 aba9c984 2019-09-08 stsp  */
 16 aba9c984 2019-09-08 stsp 
 17 aba9c984 2019-09-08 stsp #include <sys/types.h>
 18 aba9c984 2019-09-08 stsp #include <sys/queue.h>
 19 aba9c984 2019-09-08 stsp #include <sys/uio.h>
 20 aba9c984 2019-09-08 stsp #include <sys/time.h>
 21 aba9c984 2019-09-08 stsp 
 22 aba9c984 2019-09-08 stsp #include <stdint.h>
 23 aba9c984 2019-09-08 stsp #include <imsg.h>
 24 aba9c984 2019-09-08 stsp #include <limits.h>
 25 aba9c984 2019-09-08 stsp #include <signal.h>
 26 aba9c984 2019-09-08 stsp #include <stdio.h>
 27 aba9c984 2019-09-08 stsp #include <stdlib.h>
 28 aba9c984 2019-09-08 stsp #include <string.h>
 29 aba9c984 2019-09-08 stsp #include <sha1.h>
 30 5822e79e 2023-02-23 op #include <sha2.h>
 31 81a12da5 2020-09-09 naddy #include <unistd.h>
 32 aba9c984 2019-09-08 stsp #include <zlib.h>
 33 aba9c984 2019-09-08 stsp 
 34 aba9c984 2019-09-08 stsp #include "got_error.h"
 35 aba9c984 2019-09-08 stsp #include "got_object.h"
 36 cd95becd 2019-11-29 stsp #include "got_repository.h"
 37 aba9c984 2019-09-08 stsp 
 38 aba9c984 2019-09-08 stsp #include "got_lib_delta.h"
 39 aba9c984 2019-09-08 stsp #include "got_lib_object.h"
 40 aba9c984 2019-09-08 stsp #include "got_lib_privsep.h"
 41 aba9c984 2019-09-08 stsp #include "got_lib_gitconfig.h"
 42 aba9c984 2019-09-08 stsp 
 43 aba9c984 2019-09-08 stsp static volatile sig_atomic_t sigint_received;
 44 aba9c984 2019-09-08 stsp 
 45 aba9c984 2019-09-08 stsp static void
 46 aba9c984 2019-09-08 stsp catch_sigint(int signo)
 47 aba9c984 2019-09-08 stsp {
 48 aba9c984 2019-09-08 stsp 	sigint_received = 1;
 49 aba9c984 2019-09-08 stsp }
 50 aba9c984 2019-09-08 stsp 
 51 aba9c984 2019-09-08 stsp static const struct got_error *
 52 e70bf110 2020-03-22 stsp send_gitconfig_int(struct imsgbuf *ibuf, int value)
 53 e70bf110 2020-03-22 stsp {
 54 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_INT_VAL, 0, 0, -1,
 55 e70bf110 2020-03-22 stsp 	    &value, sizeof(value)) == -1)
 56 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_INT_VAL");
 57 e70bf110 2020-03-22 stsp 
 58 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
 59 e70bf110 2020-03-22 stsp }
 60 e70bf110 2020-03-22 stsp 
 61 e70bf110 2020-03-22 stsp static const struct got_error *
 62 aba9c984 2019-09-08 stsp gitconfig_num_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig,
 63 fda3525e 2021-09-25 stsp     const char *section, const char *tag, int def)
 64 aba9c984 2019-09-08 stsp {
 65 aba9c984 2019-09-08 stsp 	int value;
 66 aba9c984 2019-09-08 stsp 
 67 aba9c984 2019-09-08 stsp 	if (gitconfig == NULL)
 68 aba9c984 2019-09-08 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
 69 aba9c984 2019-09-08 stsp 
 70 aba9c984 2019-09-08 stsp 	value = got_gitconfig_get_num(gitconfig, section, tag, def);
 71 e70bf110 2020-03-22 stsp 	return send_gitconfig_int(ibuf, value);
 72 aba9c984 2019-09-08 stsp }
 73 aba9c984 2019-09-08 stsp 
 74 aba9c984 2019-09-08 stsp static const struct got_error *
 75 e70bf110 2020-03-22 stsp send_gitconfig_str(struct imsgbuf *ibuf, const char *value)
 76 e70bf110 2020-03-22 stsp {
 77 6c13dcd2 2020-09-18 stsp 	size_t len = value ? strlen(value) : 0;
 78 e70bf110 2020-03-22 stsp 
 79 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_STR_VAL, 0, 0, -1,
 80 e70bf110 2020-03-22 stsp 	    value, len) == -1)
 81 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_STR_VAL");
 82 27749ea2 2023-02-05 op 
 83 27749ea2 2023-02-05 op 	return got_privsep_flush_imsg(ibuf);
 84 27749ea2 2023-02-05 op }
 85 27749ea2 2023-02-05 op 
 86 27749ea2 2023-02-05 op static const struct got_error *
 87 27749ea2 2023-02-05 op send_gitconfig_pair(struct imsgbuf *ibuf, const char *key, const char *val)
 88 27749ea2 2023-02-05 op {
 89 27749ea2 2023-02-05 op 	struct ibuf *wbuf;
 90 27749ea2 2023-02-05 op 	size_t klen = key ? strlen(key) : 0;
 91 27749ea2 2023-02-05 op 	size_t vlen = val ? strlen(val) : 0;
 92 27749ea2 2023-02-05 op 	size_t tot = sizeof(klen) + sizeof(vlen) + klen + vlen;
 93 27749ea2 2023-02-05 op 
 94 27749ea2 2023-02-05 op 	if (tot > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
 95 27749ea2 2023-02-05 op 		return got_error(GOT_ERR_NO_SPACE);
 96 27749ea2 2023-02-05 op 
 97 27749ea2 2023-02-05 op 	wbuf = imsg_create(ibuf, GOT_IMSG_GITCONFIG_PAIR, 0, 0, tot);
 98 27749ea2 2023-02-05 op 	if (wbuf == NULL)
 99 27749ea2 2023-02-05 op 		return got_error_from_errno("imsg_create GITCONFIG_PAIR");
100 27749ea2 2023-02-05 op 
101 27749ea2 2023-02-05 op 	/* Keep in sync with got_imsg_gitconfig_pair */
102 27749ea2 2023-02-05 op 	if (imsg_add(wbuf, &klen, sizeof(klen)) == -1)
103 27749ea2 2023-02-05 op 		return got_error_from_errno("imsg_add GITCONFIG_PAIR");
104 27749ea2 2023-02-05 op 	if (imsg_add(wbuf, &vlen, sizeof(vlen)) == -1)
105 27749ea2 2023-02-05 op 		return got_error_from_errno("imsg_add GITCONFIG_PAIR");
106 27749ea2 2023-02-05 op 	if (imsg_add(wbuf, key, klen) == -1)
107 27749ea2 2023-02-05 op 		return got_error_from_errno("imsg_add GITCONFIG_PAIR");
108 27749ea2 2023-02-05 op 	if (imsg_add(wbuf, val, vlen) == -1)
109 27749ea2 2023-02-05 op 		return got_error_from_errno("imsg_add GITCONFIG_PAIR");
110 e70bf110 2020-03-22 stsp 
111 27749ea2 2023-02-05 op 	imsg_close(ibuf, wbuf);
112 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
113 e70bf110 2020-03-22 stsp }
114 e70bf110 2020-03-22 stsp 
115 e70bf110 2020-03-22 stsp static const struct got_error *
116 aba9c984 2019-09-08 stsp gitconfig_str_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig,
117 fda3525e 2021-09-25 stsp     const char *section, const char *tag)
118 aba9c984 2019-09-08 stsp {
119 aba9c984 2019-09-08 stsp 	char *value;
120 aba9c984 2019-09-08 stsp 
121 aba9c984 2019-09-08 stsp 	if (gitconfig == NULL)
122 aba9c984 2019-09-08 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
123 aba9c984 2019-09-08 stsp 
124 aba9c984 2019-09-08 stsp 	value = got_gitconfig_get_str(gitconfig, section, tag);
125 e70bf110 2020-03-22 stsp 	return send_gitconfig_str(ibuf, value);
126 aba9c984 2019-09-08 stsp }
127 aba9c984 2019-09-08 stsp 
128 cd95becd 2019-11-29 stsp static const struct got_error *
129 e70bf110 2020-03-22 stsp send_gitconfig_remotes(struct imsgbuf *ibuf, struct got_remote_repo *remotes,
130 e70bf110 2020-03-22 stsp     int nremotes)
131 e70bf110 2020-03-22 stsp {
132 e70bf110 2020-03-22 stsp 	const struct got_error *err = NULL;
133 e70bf110 2020-03-22 stsp 	struct got_imsg_remotes iremotes;
134 e70bf110 2020-03-22 stsp 	int i;
135 e70bf110 2020-03-22 stsp 
136 e70bf110 2020-03-22 stsp 	iremotes.nremotes = nremotes;
137 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_REMOTES, 0, 0, -1,
138 e70bf110 2020-03-22 stsp 	    &iremotes, sizeof(iremotes)) == -1)
139 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_REMOTES");
140 e70bf110 2020-03-22 stsp 
141 e70bf110 2020-03-22 stsp 	err = got_privsep_flush_imsg(ibuf);
142 e70bf110 2020-03-22 stsp 	imsg_clear(ibuf);
143 e70bf110 2020-03-22 stsp 	if (err)
144 e70bf110 2020-03-22 stsp 		return err;
145 e70bf110 2020-03-22 stsp 
146 e70bf110 2020-03-22 stsp 	for (i = 0; i < nremotes; i++) {
147 e70bf110 2020-03-22 stsp 		struct got_imsg_remote iremote;
148 e70bf110 2020-03-22 stsp 		size_t len = sizeof(iremote);
149 e70bf110 2020-03-22 stsp 		struct ibuf *wbuf;
150 e70bf110 2020-03-22 stsp 
151 e70bf110 2020-03-22 stsp 		iremote.mirror_references = remotes[i].mirror_references;
152 e70bf110 2020-03-22 stsp 		iremote.name_len = strlen(remotes[i].name);
153 e70bf110 2020-03-22 stsp 		len += iremote.name_len;
154 6480c871 2021-08-30 stsp 		iremote.fetch_url_len = strlen(remotes[i].fetch_url);
155 6480c871 2021-08-30 stsp 		len += iremote.fetch_url_len;
156 6480c871 2021-08-30 stsp 		iremote.send_url_len = strlen(remotes[i].send_url);
157 6480c871 2021-08-30 stsp 		len += iremote.send_url_len;
158 e70bf110 2020-03-22 stsp 
159 e70bf110 2020-03-22 stsp 		wbuf = imsg_create(ibuf, GOT_IMSG_GITCONFIG_REMOTE, 0, 0, len);
160 e70bf110 2020-03-22 stsp 		if (wbuf == NULL)
161 e70bf110 2020-03-22 stsp 			return got_error_from_errno(
162 e70bf110 2020-03-22 stsp 			    "imsg_create GITCONFIG_REMOTE");
163 e70bf110 2020-03-22 stsp 
164 1453347d 2022-05-19 stsp 		if (imsg_add(wbuf, &iremote, sizeof(iremote)) == -1)
165 1453347d 2022-05-19 stsp 			return got_error_from_errno(
166 e70bf110 2020-03-22 stsp 			    "imsg_add GITCONFIG_REMOTE");
167 e70bf110 2020-03-22 stsp 
168 1453347d 2022-05-19 stsp 		if (imsg_add(wbuf, remotes[i].name, iremote.name_len) == -1)
169 1453347d 2022-05-19 stsp 			return got_error_from_errno(
170 e70bf110 2020-03-22 stsp 			    "imsg_add GITCONFIG_REMOTE");
171 1453347d 2022-05-19 stsp 		if (imsg_add(wbuf, remotes[i].fetch_url, iremote.fetch_url_len) == -1)
172 1453347d 2022-05-19 stsp 			return got_error_from_errno(
173 6480c871 2021-08-30 stsp 			    "imsg_add GITCONFIG_REMOTE");
174 1453347d 2022-05-19 stsp 		if (imsg_add(wbuf, remotes[i].send_url, iremote.send_url_len) == -1)
175 1453347d 2022-05-19 stsp 			return got_error_from_errno(
176 1453347d 2022-05-19 stsp 			    "imsg_add GITCONFIG_REMOTE");
177 e70bf110 2020-03-22 stsp 
178 e70bf110 2020-03-22 stsp 		imsg_close(ibuf, wbuf);
179 e70bf110 2020-03-22 stsp 		err = got_privsep_flush_imsg(ibuf);
180 e70bf110 2020-03-22 stsp 		if (err)
181 e70bf110 2020-03-22 stsp 			return err;
182 e70bf110 2020-03-22 stsp 	}
183 e70bf110 2020-03-22 stsp 
184 e70bf110 2020-03-22 stsp 	return NULL;
185 e70bf110 2020-03-22 stsp }
186 e70bf110 2020-03-22 stsp 
187 20b7abb3 2020-10-22 stsp static int
188 20b7abb3 2020-10-22 stsp get_boolean_val(char *val)
189 20b7abb3 2020-10-22 stsp {
190 20b7abb3 2020-10-22 stsp     return (strcasecmp(val, "true") == 0 ||
191 20b7abb3 2020-10-22 stsp 	strcasecmp(val, "on") == 0 ||
192 20b7abb3 2020-10-22 stsp 	strcasecmp(val, "yes") == 0 ||
193 20b7abb3 2020-10-22 stsp 	strcmp(val, "1") == 0);
194 20b7abb3 2020-10-22 stsp }
195 e70bf110 2020-03-22 stsp 
196 b624328e 2024-01-25 falsifian static int
197 b624328e 2024-01-25 falsifian skip_node(struct got_gitconfig *gitconfig, struct got_gitconfig_list_node *node)
198 b624328e 2024-01-25 falsifian {
199 b624328e 2024-01-25 falsifian 	/*
200 b624328e 2024-01-25 falsifian 	 * Skip config nodes which do not describe remotes, and remotes
201 b624328e 2024-01-25 falsifian 	 * which do not have a fetch URL defined (as used by git-annex).
202 b624328e 2024-01-25 falsifian 	 */
203 b624328e 2024-01-25 falsifian 	return (strncasecmp("remote \"", node->field, 8) != 0 ||
204 b624328e 2024-01-25 falsifian 	    got_gitconfig_get_str(gitconfig, node->field, "url") == NULL);
205 b624328e 2024-01-25 falsifian }
206 b624328e 2024-01-25 falsifian 
207 e70bf110 2020-03-22 stsp static const struct got_error *
208 cd95becd 2019-11-29 stsp gitconfig_remotes_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig)
209 cd95becd 2019-11-29 stsp {
210 cd95becd 2019-11-29 stsp 	const struct got_error *err = NULL;
211 cd95becd 2019-11-29 stsp 	struct got_gitconfig_list *sections;
212 cd95becd 2019-11-29 stsp 	struct got_gitconfig_list_node *node;
213 cd95becd 2019-11-29 stsp 	struct got_remote_repo *remotes = NULL;
214 cd95becd 2019-11-29 stsp 	int nremotes = 0, i;
215 cd95becd 2019-11-29 stsp 
216 cd95becd 2019-11-29 stsp 	if (gitconfig == NULL)
217 cd95becd 2019-11-29 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
218 cd95becd 2019-11-29 stsp 
219 cd95becd 2019-11-29 stsp 	err = got_gitconfig_get_section_list(&sections, gitconfig);
220 cd95becd 2019-11-29 stsp 	if (err)
221 cd95becd 2019-11-29 stsp 		return err;
222 cd95becd 2019-11-29 stsp 
223 cd95becd 2019-11-29 stsp 	TAILQ_FOREACH(node, &sections->fields, link) {
224 b624328e 2024-01-25 falsifian 		if (skip_node(gitconfig, node))
225 cd95becd 2019-11-29 stsp 			continue;
226 cd95becd 2019-11-29 stsp 		nremotes++;
227 cd95becd 2019-11-29 stsp 	}
228 cd95becd 2019-11-29 stsp 
229 cd95becd 2019-11-29 stsp 	if (nremotes == 0) {
230 e70bf110 2020-03-22 stsp 		err = send_gitconfig_remotes(ibuf, NULL, 0);
231 cd95becd 2019-11-29 stsp 		goto done;
232 cd95becd 2019-11-29 stsp 	}
233 cd95becd 2019-11-29 stsp 
234 cd95becd 2019-11-29 stsp 	remotes = recallocarray(NULL, 0, nremotes, sizeof(*remotes));
235 cd95becd 2019-11-29 stsp 	if (remotes == NULL) {
236 cd95becd 2019-11-29 stsp 		err = got_error_from_errno("recallocarray");
237 cd95becd 2019-11-29 stsp 		goto done;
238 cd95becd 2019-11-29 stsp 	}
239 cd95becd 2019-11-29 stsp 
240 cd95becd 2019-11-29 stsp 	i = 0;
241 cd95becd 2019-11-29 stsp 	TAILQ_FOREACH(node, &sections->fields, link) {
242 469dd726 2020-03-20 stsp 		char *name, *end, *mirror;
243 cd95becd 2019-11-29 stsp 
244 b624328e 2024-01-25 falsifian 		if (skip_node(gitconfig, node))
245 cd95becd 2019-11-29 stsp 			continue;
246 cd95becd 2019-11-29 stsp 
247 cd95becd 2019-11-29 stsp 		name = strdup(node->field + 8);
248 cd95becd 2019-11-29 stsp 		if (name == NULL) {
249 cd95becd 2019-11-29 stsp 			err = got_error_from_errno("strdup");
250 cd95becd 2019-11-29 stsp 			goto done;
251 cd95becd 2019-11-29 stsp 		}
252 cd95becd 2019-11-29 stsp 		end = strrchr(name, '"');
253 cd95becd 2019-11-29 stsp 		if (end)
254 cd95becd 2019-11-29 stsp 			*end = '\0';
255 cd95becd 2019-11-29 stsp 		remotes[i].name = name;
256 cd95becd 2019-11-29 stsp 
257 6480c871 2021-08-30 stsp 		remotes[i].fetch_url = got_gitconfig_get_str(gitconfig,
258 cd95becd 2019-11-29 stsp 		    node->field, "url");
259 469dd726 2020-03-20 stsp 
260 6480c871 2021-08-30 stsp 		remotes[i].send_url = got_gitconfig_get_str(gitconfig,
261 6480c871 2021-08-30 stsp 		    node->field, "pushurl");
262 6480c871 2021-08-30 stsp 		if (remotes[i].send_url == NULL)
263 b624328e 2024-01-25 falsifian 			remotes[i].send_url = remotes[i].fetch_url;
264 6480c871 2021-08-30 stsp 
265 469dd726 2020-03-20 stsp 		remotes[i].mirror_references = 0;
266 469dd726 2020-03-20 stsp 		mirror = got_gitconfig_get_str(gitconfig, node->field,
267 469dd726 2020-03-20 stsp 		    "mirror");
268 20b7abb3 2020-10-22 stsp 		if (mirror != NULL && get_boolean_val(mirror))
269 469dd726 2020-03-20 stsp 			remotes[i].mirror_references = 1;
270 cd95becd 2019-11-29 stsp 
271 cd95becd 2019-11-29 stsp 		i++;
272 cd95becd 2019-11-29 stsp 	}
273 cd95becd 2019-11-29 stsp 
274 e70bf110 2020-03-22 stsp 	err = send_gitconfig_remotes(ibuf, remotes, nremotes);
275 cd95becd 2019-11-29 stsp done:
276 cd95becd 2019-11-29 stsp 	for (i = 0; i < nremotes; i++)
277 cd95becd 2019-11-29 stsp 		free(remotes[i].name);
278 cd95becd 2019-11-29 stsp 	free(remotes);
279 cd95becd 2019-11-29 stsp 	got_gitconfig_free_list(sections);
280 cd95becd 2019-11-29 stsp 	return err;
281 9a1cc63f 2020-02-03 stsp }
282 9a1cc63f 2020-02-03 stsp 
283 9a1cc63f 2020-02-03 stsp static const struct got_error *
284 9a1cc63f 2020-02-03 stsp gitconfig_owner_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig)
285 9a1cc63f 2020-02-03 stsp {
286 9a1cc63f 2020-02-03 stsp 	char *value;
287 9a1cc63f 2020-02-03 stsp 
288 9a1cc63f 2020-02-03 stsp 	if (gitconfig == NULL)
289 9a1cc63f 2020-02-03 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
290 9a1cc63f 2020-02-03 stsp 
291 9a1cc63f 2020-02-03 stsp 	value = got_gitconfig_get_str(gitconfig, "gotweb", "owner");
292 9a1cc63f 2020-02-03 stsp 	if (value)
293 e70bf110 2020-03-22 stsp 		return send_gitconfig_str(ibuf, value);
294 9a1cc63f 2020-02-03 stsp 	value = got_gitconfig_get_str(gitconfig, "gitweb", "owner");
295 e70bf110 2020-03-22 stsp 	return send_gitconfig_str(ibuf, value);
296 cd95becd 2019-11-29 stsp }
297 cd95becd 2019-11-29 stsp 
298 20b7abb3 2020-10-22 stsp static const struct got_error *
299 20b7abb3 2020-10-22 stsp gitconfig_extensions_request(struct imsgbuf *ibuf,
300 20b7abb3 2020-10-22 stsp     struct got_gitconfig *gitconfig)
301 20b7abb3 2020-10-22 stsp {
302 20b7abb3 2020-10-22 stsp 	const struct got_error *err = NULL;
303 20b7abb3 2020-10-22 stsp 	struct got_gitconfig_list *tags;
304 20b7abb3 2020-10-22 stsp 	struct got_gitconfig_list_node *node;
305 20b7abb3 2020-10-22 stsp 	int nextensions = 0;
306 20b7abb3 2020-10-22 stsp 	char *val;
307 20b7abb3 2020-10-22 stsp 
308 20b7abb3 2020-10-22 stsp 	if (gitconfig == NULL)
309 20b7abb3 2020-10-22 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
310 20b7abb3 2020-10-22 stsp 
311 20b7abb3 2020-10-22 stsp 	tags = got_gitconfig_get_tag_list(gitconfig, "extensions");
312 20b7abb3 2020-10-22 stsp 	if (tags == NULL)
313 20b7abb3 2020-10-22 stsp 		return send_gitconfig_int(ibuf, 0);
314 20b7abb3 2020-10-22 stsp 
315 27749ea2 2023-02-05 op 	TAILQ_FOREACH(node, &tags->fields, link)
316 27749ea2 2023-02-05 op 		nextensions++;
317 20b7abb3 2020-10-22 stsp 
318 20b7abb3 2020-10-22 stsp 	err = send_gitconfig_int(ibuf, nextensions);
319 20b7abb3 2020-10-22 stsp 	if (err)
320 20b7abb3 2020-10-22 stsp 		goto done;
321 20b7abb3 2020-10-22 stsp 
322 20b7abb3 2020-10-22 stsp 	TAILQ_FOREACH(node, &tags->fields, link) {
323 20b7abb3 2020-10-22 stsp 		val = got_gitconfig_get_str(gitconfig, "extensions",
324 20b7abb3 2020-10-22 stsp 		    node->field);
325 27749ea2 2023-02-05 op 		err = send_gitconfig_pair(ibuf, node->field, val);
326 27749ea2 2023-02-05 op 		if (err)
327 27749ea2 2023-02-05 op 			goto done;
328 20b7abb3 2020-10-22 stsp 	}
329 20b7abb3 2020-10-22 stsp done:
330 20b7abb3 2020-10-22 stsp 	got_gitconfig_free_list(tags);
331 20b7abb3 2020-10-22 stsp 	return err;
332 20b7abb3 2020-10-22 stsp }
333 20b7abb3 2020-10-22 stsp 
334 aba9c984 2019-09-08 stsp int
335 aba9c984 2019-09-08 stsp main(int argc, char *argv[])
336 aba9c984 2019-09-08 stsp {
337 aba9c984 2019-09-08 stsp 	const struct got_error *err = NULL;
338 aba9c984 2019-09-08 stsp 	struct imsgbuf ibuf;
339 aba9c984 2019-09-08 stsp 	size_t datalen;
340 aba9c984 2019-09-08 stsp 	struct got_gitconfig *gitconfig = NULL;
341 aba9c984 2019-09-08 stsp #if 0
342 aba9c984 2019-09-08 stsp 	static int attached;
343 aba9c984 2019-09-08 stsp 
344 aba9c984 2019-09-08 stsp 	while (!attached)
345 aba9c984 2019-09-08 stsp 		sleep(1);
346 aba9c984 2019-09-08 stsp #endif
347 aba9c984 2019-09-08 stsp 	signal(SIGINT, catch_sigint);
348 aba9c984 2019-09-08 stsp 
349 aba9c984 2019-09-08 stsp 	imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
350 aba9c984 2019-09-08 stsp 
351 aba9c984 2019-09-08 stsp #ifndef PROFILE
352 aba9c984 2019-09-08 stsp 	/* revoke access to most system calls */
353 aba9c984 2019-09-08 stsp 	if (pledge("stdio recvfd", NULL) == -1) {
354 aba9c984 2019-09-08 stsp 		err = got_error_from_errno("pledge");
355 aba9c984 2019-09-08 stsp 		got_privsep_send_error(&ibuf, err);
356 aba9c984 2019-09-08 stsp 		return 1;
357 aba9c984 2019-09-08 stsp 	}
358 aba9c984 2019-09-08 stsp #endif
359 aba9c984 2019-09-08 stsp 
360 aba9c984 2019-09-08 stsp 	for (;;) {
361 aba9c984 2019-09-08 stsp 		struct imsg imsg;
362 2c52c623 2024-01-30 op 		int fd = -1;
363 aba9c984 2019-09-08 stsp 
364 aba9c984 2019-09-08 stsp 		memset(&imsg, 0, sizeof(imsg));
365 aba9c984 2019-09-08 stsp 
366 aba9c984 2019-09-08 stsp 		if (sigint_received) {
367 aba9c984 2019-09-08 stsp 			err = got_error(GOT_ERR_CANCELLED);
368 aba9c984 2019-09-08 stsp 			break;
369 aba9c984 2019-09-08 stsp 		}
370 aba9c984 2019-09-08 stsp 
371 aba9c984 2019-09-08 stsp 		err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
372 aba9c984 2019-09-08 stsp 		if (err) {
373 aba9c984 2019-09-08 stsp 			if (err->code == GOT_ERR_PRIVSEP_PIPE)
374 aba9c984 2019-09-08 stsp 				err = NULL;
375 aba9c984 2019-09-08 stsp 			break;
376 aba9c984 2019-09-08 stsp 		}
377 aba9c984 2019-09-08 stsp 
378 aba9c984 2019-09-08 stsp 		if (imsg.hdr.type == GOT_IMSG_STOP)
379 aba9c984 2019-09-08 stsp 			break;
380 aba9c984 2019-09-08 stsp 
381 aba9c984 2019-09-08 stsp 		switch (imsg.hdr.type) {
382 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_PARSE_REQUEST:
383 aba9c984 2019-09-08 stsp 			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
384 aba9c984 2019-09-08 stsp 			if (datalen != 0) {
385 aba9c984 2019-09-08 stsp 				err = got_error(GOT_ERR_PRIVSEP_LEN);
386 aba9c984 2019-09-08 stsp 				break;
387 aba9c984 2019-09-08 stsp 			}
388 2c52c623 2024-01-30 op 			fd = imsg_get_fd(&imsg);
389 2c52c623 2024-01-30 op 			if (fd == -1) {
390 aba9c984 2019-09-08 stsp 				err = got_error(GOT_ERR_PRIVSEP_NO_FD);
391 aba9c984 2019-09-08 stsp 				break;
392 aba9c984 2019-09-08 stsp 			}
393 aba9c984 2019-09-08 stsp 
394 aba9c984 2019-09-08 stsp 			if (gitconfig)
395 aba9c984 2019-09-08 stsp 				got_gitconfig_close(gitconfig);
396 2c52c623 2024-01-30 op 			err = got_gitconfig_open(&gitconfig, fd);
397 aba9c984 2019-09-08 stsp 			break;
398 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST:
399 aba9c984 2019-09-08 stsp 			err = gitconfig_num_request(&ibuf, gitconfig, "core",
400 aba9c984 2019-09-08 stsp 			    "repositoryformatversion", 0);
401 aba9c984 2019-09-08 stsp 			break;
402 20b7abb3 2020-10-22 stsp 		case GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST:
403 20b7abb3 2020-10-22 stsp 			err = gitconfig_extensions_request(&ibuf, gitconfig);
404 20b7abb3 2020-10-22 stsp 			break;
405 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST:
406 aba9c984 2019-09-08 stsp 			err = gitconfig_str_request(&ibuf, gitconfig, "user",
407 aba9c984 2019-09-08 stsp 			    "name");
408 aba9c984 2019-09-08 stsp 			break;
409 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST:
410 aba9c984 2019-09-08 stsp 			err = gitconfig_str_request(&ibuf, gitconfig, "user",
411 aba9c984 2019-09-08 stsp 			    "email");
412 aba9c984 2019-09-08 stsp 			break;
413 cd95becd 2019-11-29 stsp 		case GOT_IMSG_GITCONFIG_REMOTES_REQUEST:
414 cd95becd 2019-11-29 stsp 			err = gitconfig_remotes_request(&ibuf, gitconfig);
415 cd95becd 2019-11-29 stsp 			break;
416 9a1cc63f 2020-02-03 stsp 		case GOT_IMSG_GITCONFIG_OWNER_REQUEST:
417 9a1cc63f 2020-02-03 stsp 			err = gitconfig_owner_request(&ibuf, gitconfig);
418 9a1cc63f 2020-02-03 stsp 			break;
419 aba9c984 2019-09-08 stsp 		default:
420 aba9c984 2019-09-08 stsp 			err = got_error(GOT_ERR_PRIVSEP_MSG);
421 aba9c984 2019-09-08 stsp 			break;
422 aba9c984 2019-09-08 stsp 		}
423 aba9c984 2019-09-08 stsp 
424 2c52c623 2024-01-30 op 		if (fd != -1) {
425 2c52c623 2024-01-30 op 			if (close(fd) == -1 && err == NULL)
426 aba9c984 2019-09-08 stsp 				err = got_error_from_errno("close");
427 aba9c984 2019-09-08 stsp 		}
428 aba9c984 2019-09-08 stsp 
429 aba9c984 2019-09-08 stsp 		imsg_free(&imsg);
430 aba9c984 2019-09-08 stsp 		if (err)
431 aba9c984 2019-09-08 stsp 			break;
432 aba9c984 2019-09-08 stsp 	}
433 aba9c984 2019-09-08 stsp 
434 aba9c984 2019-09-08 stsp 	imsg_clear(&ibuf);
435 aba9c984 2019-09-08 stsp 	if (err) {
436 aba9c984 2019-09-08 stsp 		if (!sigint_received && err->code != GOT_ERR_PRIVSEP_PIPE) {
437 aba9c984 2019-09-08 stsp 			fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
438 aba9c984 2019-09-08 stsp 			got_privsep_send_error(&ibuf, err);
439 aba9c984 2019-09-08 stsp 		}
440 aba9c984 2019-09-08 stsp 	}
441 08578a35 2021-01-22 stsp 	if (close(GOT_IMSG_FD_CHILD) == -1 && err == NULL)
442 aba9c984 2019-09-08 stsp 		err = got_error_from_errno("close");
443 aba9c984 2019-09-08 stsp 	return err ? 1 : 0;
444 aba9c984 2019-09-08 stsp }